Mercedes-Benz W202 W203 W208 W220 M112 M113 Engine Starter Motor A0051510101

Description

Mercedes-Benz W202 W203 W208 W220 M112 M113 Engine Starter Motor is an original component from the Starters group, designed for use in popular Mercedes C, E, and S-Class models. This used starting component provides a practical solution for drivers looking for a proven, factory-spec part with maintained functionality and structural fitment for specific vehicle generations.

Specifications and technical data

• SKU: rhd-A0051510101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0051510101
• Substitutable numbers: A0051510101, A 005 151 01 01
• Category: Starter Motors

Purpose and compatibility

The presented starter motor is dedicated to selected engine versions of Mercedes W202, W203, W208, and W220 series, which utilize variants designated as M112 and M113. As a result, the driver receives a component designed for specific powertrains, which translates into proper starting parameters, correct fitment with the gearbox housing, and proper cooperation with the vehicle’s electrical system.

The starter from this series is particularly useful for repairs of daily-driven cars, where operational repeatability, appropriate starting torque, and the preservation of factory mounting points are essential. The use of an original component reduces the risk of fitment issues and eliminates the need for electrical system modifications.

Construction and performance parameters

The M112/M113 starter motor for Mercedes W202, W203, W208, and W220 models is a classic electromechanical design, where the electric motor assembly works with a coupling mechanism engaging the flywheel ring gear. The applied configuration ensures sufficient starting power while maintaining stable current draw, which is important for the battery’s lifespan and the entire starting system.

Original manufacturing guarantees:

• maintenance of the correct tooth geometry for engagement with the flywheel ring gear,
• correct positioning of mounting points relative to the engine block and gearbox,
• compatibility with factory electrical harnesses and connectors.

Thanks to this, the starter can be installed as a direct replacement for the factory component without the need for vehicle structural modifications.

Benefits of using an original Mercedes starter motor

Using a starter motor dedicated to specific Mercedes body series brings a number of practical benefits. Firstly, factory mechanical and electrical compatibility is maintained, which minimizes the risk of issues during the first start-up after installation. Secondly, the used OEM component allows for maintaining reasonable repair costs while preserving the quality of workmanship characteristic of the manufacturer.

The starter from this group will prove effective both for standard replacement of a worn component and for major service work within the powertrain. This is a particularly attractive solution for workshops specializing in the Mercedes brand and for conscious users who prefer parts from dismantling over uncertain aftermarket replacements of unknown origin.

Condition, verification, and practical application

The offered starter is an aftermarket component, which allows for economical repair of older models while maintaining an appropriate level of quality. Before installation, standard workshop verification is recommended, including testing on a test bench, checking the condition of the teeth, axial play, and electrical contacts. Such an approach increases confidence that the component will work correctly with the vehicle’s starting system.

In practice, the M112/M113 starter used in Mercedes W202, W203, W208, and W220 models is often chosen during comprehensive engine repairs, gearbox replacements, or when dealing with starting issues on both warm and cold engines. A properly selected and functional component significantly improves the comfort of daily operation, shortening start-up time and reducing the load on other electrical system components.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as different types of starters, variants with different mountings, or models adapted to other engine versions, check the available parts in the Mercedes Starters category.

To better plan the repair of an older Mercedes and understand the advantages of using aftermarket components, it is worth reading the guide: No parts at the dealership? How to handle repairs of older models using parts from dismantling.